Will mark the
which of the following is a way to measure the sequence of significant events on earth over time?

fossil time

geologic time

radioactive time

relative time

Describe the path of a ray that approaches a mirror parallel to the principal axis.

The heliocentric and the geocentric models of the solar system included these central principles

The space between two 15-in.-long concentric cylinders is filled with glycerin (viscosity = 8.5 × 10-3 lb·s/ft2). the inner cylinder has a radius of 1 in. and the gap width between cylinders is 0.1 in. determine (a) the torque and (b) the power required to rotate the inner cylinder at 180 rev/min. the outer cylinder is fixed. assume the velocity distribution in the gap to be linear.